X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules.cpp;h=26e91f87694f1f383bda1699a080563bb004c785;hb=8710724b5518ae9858309e548514f76e620a8459;hp=2a835f10d2e45d1165af8876443935bfda3f7ddf;hpb=9336468f5bfa60318cb57db5126047147b7a21cb;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules.cpp b/src/modules.cpp index 2a835f10d..26e91f876 100644 --- a/src/modules.cpp +++ b/src/modules.cpp @@ -1,148 +1,112 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2009 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2007, 2009 Dennis Friis + * Copyright (C) 2003-2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2006-2007 Robin Burchell + * Copyright (C) 2006-2007 Oliver Lupton + * Copyright (C) 2007 Pippijn van Steenhoven + * Copyright (C) 2003 randomdan * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -/* $Core */ +#include #include "inspircd.h" #include "xline.h" #include "socket.h" #include "socketengine.h" #include "command_parse.h" -#include "dns.h" #include "exitcodes.h" -#ifndef WIN32 +#ifndef _WIN32 #include #endif +static std::vector* dynrefs = NULL; +static bool dynref_init_complete = false; -// version is a simple class for holding a modules version number -Version::Version(const std::string &modv, int flags, int api_ver, const std::string& rev) -: description(modv), version(rev), Flags(flags), API(api_ver) +void dynamic_reference_base::reset_all() { + dynref_init_complete = true; + if (!dynrefs) + return; + for(unsigned int i = 0; i < dynrefs->size(); i++) + (*dynrefs)[i]->resolve(); } -Request::Request(char* anydata, Module* src, Module* dst) -: data(anydata), source(src), dest(dst) -{ - /* Ensure that because this module doesnt support ID strings, it doesnt break modules that do - * by passing them uninitialized pointers (could happen) - */ - id = '\0'; -} - -Request::Request(Module* src, Module* dst, const char* idstr) -: id(idstr), source(src), dest(dst) +// Version is a simple class for holding a modules version number +Version::Version(const std::string &desc, int flags) : description(desc), Flags(flags) { } -char* Request::GetData() +Version::Version(const std::string &desc, int flags, const std::string& linkdata) +: description(desc), Flags(flags), link_data(linkdata) { - return this->data; } -const char* Request::GetId() -{ - return this->id; -} - -Module* Request::GetSource() -{ - return this->source; -} +Event::Event(Module* src, const std::string &eventid) : source(src), id(eventid) { } -Module* Request::GetDest() +void Event::Send() { - return this->dest; + FOREACH_MOD(OnEvent, (*this)); } -const char* Request::Send() -{ - if (this->dest) - { - return dest->OnRequest(this); - } - else - { - return NULL; - } -} - -Event::Event(char* anydata, Module* src, const std::string &eventid) : data(anydata), source(src), id(eventid) { } - -char* Event::GetData() -{ - return this->data; -} - -Module* Event::GetSource() -{ - return this->source; -} - -char* Event::Send() -{ - FOREACH_MOD(I_OnEvent,OnEvent(this)); - return NULL; -} - -std::string Event::GetEventID() -{ - return this->id; -} - - // These declarations define the behavours of the base class Module (which does nothing at all) Module::Module() { } -bool Module::cull() +CullResult Module::cull() +{ + return classbase::cull(); +} +Module::~Module() { - ServerInstance->GlobalCulls.AddItem(ModuleDLLFactory); - return true; } -Module::~Module() { } ModResult Module::OnSendSnotice(char &snomask, std::string &type, const std::string &message) { return MOD_RES_PASSTHRU; } -void Module::OnUserConnect(User*) { } +void Module::OnUserConnect(LocalUser*) { } void Module::OnUserQuit(User*, const std::string&, const std::string&) { } -void Module::OnUserDisconnect(User*) { } +void Module::OnUserDisconnect(LocalUser*) { } void Module::OnUserJoin(Membership*, bool, bool, CUList&) { } void Module::OnPostJoin(Membership*) { } void Module::OnUserPart(Membership*, std::string&, CUList&) { } void Module::OnPreRehash(User*, const std::string&) { } void Module::OnModuleRehash(User*, const std::string&) { } void Module::OnRehash(User*) { } -ModResult Module::OnUserPreJoin(User*, Channel*, const char*, std::string&, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnMode(User*, void*, int, const std::vector&, const std::vector&) { } +ModResult Module::OnUserPreJoin(LocalUser*, Channel*, const std::string&, std::string&, const std::string&) { return MOD_RES_PASSTHRU; } +void Module::OnMode(User*, User*, Channel*, const std::vector&, const std::vector&) { } void Module::OnOper(User*, const std::string&) { } void Module::OnPostOper(User*, const std::string&, const std::string &) { } void Module::OnInfo(User*) { } void Module::OnWhois(User*, User*) { } ModResult Module::OnUserPreInvite(User*, User*, Channel*, time_t) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreMessage(User*, void*, int, std::string&, char, CUList&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreNotice(User*, void*, int, std::string&, char, CUList&) { return MOD_RES_PASSTHRU; } +ModResult Module::OnUserPreMessage(User*, void*, int, std::string&, char, CUList&, MessageType) { return MOD_RES_PASSTHRU; } ModResult Module::OnUserPreNick(User*, const std::string&) { return MOD_RES_PASSTHRU; } void Module::OnUserPostNick(User*, const std::string&) { } ModResult Module::OnPreMode(User*, User*, Channel*, const std::vector&) { return MOD_RES_PASSTHRU; } -void Module::On005Numeric(std::string&) { } +void Module::On005Numeric(std::map&) { } ModResult Module::OnKill(User*, User*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnLoadModule(Module*, const std::string&) { } -void Module::OnUnloadModule(Module*, const std::string&) { } +void Module::OnLoadModule(Module*) { } +void Module::OnUnloadModule(Module*) { } void Module::OnBackgroundTimer(time_t) { } -ModResult Module::OnPreCommand(std::string&, std::vector&, User *, bool, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnPostCommand(const std::string&, const std::vector&, User *, CmdResult, const std::string&) { } -ModResult Module::OnCheckReady(User*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserRegister(User*) { return MOD_RES_PASSTHRU; } +ModResult Module::OnPreCommand(std::string&, std::vector&, LocalUser*, bool, const std::string&) { return MOD_RES_PASSTHRU; } +void Module::OnPostCommand(Command*, const std::vector&, LocalUser*, CmdResult, const std::string&) { } +void Module::OnUserInit(LocalUser*) { } +ModResult Module::OnCheckReady(LocalUser*) { return MOD_RES_PASSTHRU; } +ModResult Module::OnUserRegister(LocalUser*) { return MOD_RES_PASSTHRU; } ModResult Module::OnUserPreKick(User*, Membership*, const std::string&) { return MOD_RES_PASSTHRU; } void Module::OnUserKick(User*, Membership*, const std::string&, CUList&) { } ModResult Module::OnRawMode(User*, Channel*, const char, const std::string &, bool, int) { return MOD_RES_PASSTHRU; } @@ -153,24 +117,14 @@ ModResult Module::OnCheckChannelBan(User*, Channel*) { return MOD_RES_PASSTHRU; ModResult Module::OnCheckBan(User*, Channel*, const std::string&) { return MOD_RES_PASSTHRU; } ModResult Module::OnExtBanCheck(User*, Channel*, char) { return MOD_RES_PASSTHRU; } ModResult Module::OnStats(char, User*, string_list&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnChangeLocalUserHost(User*, const std::string&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnChangeLocalUserGECOS(User*, const std::string&) { return MOD_RES_PASSTHRU; } +ModResult Module::OnChangeLocalUserHost(LocalUser*, const std::string&) { return MOD_RES_PASSTHRU; } +ModResult Module::OnChangeLocalUserGECOS(LocalUser*, const std::string&) { return MOD_RES_PASSTHRU; } ModResult Module::OnPreTopicChange(User*, Channel*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnEvent(Event*) { return; } -const char* Module::OnRequest(Request*) { return NULL; } +void Module::OnEvent(Event&) { } ModResult Module::OnPassCompare(Extensible* ex, const std::string &password, const std::string &input, const std::string& hashtype) { return MOD_RES_PASSTHRU; } void Module::OnGlobalOper(User*) { } void Module::OnPostConnect(User*) { } -ModResult Module::OnAddBan(User*, Channel*, const std::string &) { return MOD_RES_PASSTHRU; } -ModResult Module::OnDelBan(User*, Channel*, const std::string &) { return MOD_RES_PASSTHRU; } -void Module::OnStreamSocketAccept(StreamSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { } -int Module::OnStreamSocketWrite(StreamSocket*, std::string&) { return -1; } -void Module::OnStreamSocketClose(StreamSocket*) { } -void Module::OnStreamSocketConnect(StreamSocket*) { } -int Module::OnStreamSocketRead(StreamSocket*, std::string&) { return -1; } -void Module::OnUserMessage(User*, void*, int, const std::string&, char, const CUList&) { } -void Module::OnUserNotice(User*, void*, int, const std::string&, char, const CUList&) { } -void Module::OnRemoteKill(User*, User*, const std::string&, const std::string&) { } +void Module::OnUserMessage(User*, void*, int, const std::string&, char, const CUList&, MessageType) { } void Module::OnUserInvite(User*, User*, Channel*, time_t) { } void Module::OnPostTopicChange(User*, Channel*, const std::string&) { } void Module::OnGetServerDescription(const std::string&, std::string&) { } @@ -180,7 +134,6 @@ void Module::OnSyncNetwork(Module*, void*) { } void Module::ProtoSendMode(void*, TargetTypeFlags, void*, const std::vector&, const std::vector&) { } void Module::OnDecodeMetaData(Extensible*, const std::string&, const std::string&) { } void Module::ProtoSendMetaData(void*, Extensible*, const std::string&, const std::string&) { } -void Module::OnWallops(User*, const std::string&) { } void Module::OnChangeHost(User*, const std::string&) { } void Module::OnChangeName(User*, const std::string&) { } void Module::OnChangeIdent(User*, const std::string&) { } @@ -191,17 +144,18 @@ void Module::OnCleanup(int, void*) { } ModResult Module::OnChannelPreDelete(Channel*) { return MOD_RES_PASSTHRU; } void Module::OnChannelDelete(Channel*) { } ModResult Module::OnSetAway(User*, const std::string &) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserList(User*, Channel*) { return MOD_RES_PASSTHRU; } ModResult Module::OnWhoisLine(User*, User*, int&, std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnBuildExemptList(MessageType, Channel*, User*, char, CUList&, const std::string&) { } +void Module::OnBuildNeighborList(User*, UserChanList&, std::map&) { } void Module::OnGarbageCollect() { } +ModResult Module::OnSetConnectClass(LocalUser* user, ConnectClass* myclass) { return MOD_RES_PASSTHRU; } void Module::OnText(User*, void*, int, const std::string&, char, CUList&) { } void Module::OnRunTestSuite() { } void Module::OnNamesListItem(User*, Membership*, std::string&, std::string&) { } ModResult Module::OnNumeric(User*, unsigned int, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnHookIO(StreamSocket*, ListenSocketBase*) { } -ModResult Module::OnHostCycle(User*) { return MOD_RES_PASSTHRU; } -void Module::OnSendWhoLine(User*, User*, Channel*, std::string&) { } +void Module::OnHookIO(StreamSocket*, ListenSocket*) { } +ModResult Module::OnAcceptConnection(int, ListenSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { return MOD_RES_PASSTHRU; } +void Module::OnSendWhoLine(User*, const std::vector&, User*, std::string&) { } +void Module::OnSetUserIP(LocalUser*) { } ModuleManager::ModuleManager() : ModCount(0) { @@ -251,7 +205,7 @@ bool ModuleManager::SetPriority(Module* mod, Priority s) return true; } -bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module** modules, size_t sz) +bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module* which) { /** To change the priority of a module, we first find its position in the vector, * then we find the position of the other modules in the vector that this module @@ -259,10 +213,7 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul * on which they want, and we make sure our module is *at least* before or after * the first or last of this subset, depending again on the type of priority. */ - size_t swap_pos = 0; - size_t source = 0; - bool swap = true; - bool found = false; + size_t my_pos = 0; /* Locate our module. This is O(n) but it only occurs on module load so we're * not too bothered about it @@ -271,81 +222,65 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul { if (EventHandlers[i][x] == mod) { - source = x; - found = true; - break; + my_pos = x; + goto found_src; } } /* Eh? this module doesnt exist, probably trying to set priority on an event * theyre not attached to. */ - if (!found) - return false; + return false; +found_src: + size_t swap_pos = my_pos; switch (s) { - /* Dummy value */ - case PRIORITY_DONTCARE: - swap = false; - break; - /* Module wants to be first, sod everything else */ case PRIORITY_FIRST: if (prioritizationState != PRIO_STATE_FIRST) - swap = false; + return true; else swap_pos = 0; - break; - /* Module wants to be last. */ + break; case PRIORITY_LAST: if (prioritizationState != PRIO_STATE_FIRST) - swap = false; - else if (EventHandlers[i].empty()) - swap_pos = 0; + return true; else swap_pos = EventHandlers[i].size() - 1; - break; - /* Place this module after a set of other modules */ + break; case PRIORITY_AFTER: { - /* Find the latest possible position */ - swap_pos = 0; - swap = false; - for (size_t x = 0; x != EventHandlers[i].size(); ++x) + /* Find the latest possible position, only searching AFTER our position */ + for (size_t x = EventHandlers[i].size() - 1; x > my_pos; --x) { - for (size_t n = 0; n < sz; ++n) + if (EventHandlers[i][x] == which) { - if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x >= swap_pos) && (source <= swap_pos)) - { - swap_pos = x; - swap = true; - } + swap_pos = x; + goto swap_now; } } + // didn't find it - either not loaded or we're already after + return true; } - break; /* Place this module before a set of other modules */ case PRIORITY_BEFORE: { - swap_pos = EventHandlers[i].size() - 1; - swap = false; - for (size_t x = 0; x != EventHandlers[i].size(); ++x) + for (size_t x = 0; x < my_pos; ++x) { - for (size_t n = 0; n < sz; ++n) + if (EventHandlers[i][x] == which) { - if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x <= swap_pos) && (source >= swap_pos)) - { - swap = true; - swap_pos = x; - } + swap_pos = x; + goto swap_now; } } + // didn't find it - either not loaded or we're already before + return true; } - break; } +swap_now: /* Do we need to swap? */ - if (swap && (swap_pos != source)) + if (swap_pos != my_pos) { // We are going to change positions; we'll need to run again to verify all requirements if (prioritizationState == PRIO_STATE_LAST) @@ -353,12 +288,12 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul /* Suggestion from Phoenix, "shuffle" the modules to better retain call order */ int incrmnt = 1; - if (source > swap_pos) + if (my_pos > swap_pos) incrmnt = -1; - for (unsigned int j = source; j != swap_pos; j += incrmnt) + for (unsigned int j = my_pos; j != swap_pos; j += incrmnt) { - if (( j + incrmnt > EventHandlers[i].size() - 1) || (j + incrmnt < 0)) + if ((j + incrmnt > EventHandlers[i].size() - 1) || ((incrmnt == -1) && (j == 0))) continue; std::swap(EventHandlers[i][j], EventHandlers[i][j+incrmnt]); @@ -368,500 +303,237 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul return true; } -std::string& ModuleManager::LastError() +bool ModuleManager::CanUnload(Module* mod) { - return LastModuleError; -} + std::map::iterator modfind = Modules.find(mod->ModuleSourceFile); -bool ModuleManager::Load(const char* filename) -{ - /* Do we have a glob pattern in the filename? - * The user wants to load multiple modules which - * match the pattern. - */ - if (strchr(filename,'*') || (strchr(filename,'?'))) + if ((modfind == Modules.end()) || (modfind->second != mod) || (mod->dying)) { - int n_match = 0; - DIR* library = opendir(ServerInstance->Config->ModPath.c_str()); - if (library) - { - /* Try and locate and load all modules matching the pattern */ - dirent* entry = NULL; - while (0 != (entry = readdir(library))) - { - if (InspIRCd::Match(entry->d_name, filename, ascii_case_insensitive_map)) - { - if (!this->Load(entry->d_name)) - n_match++; - } - } - closedir(library); - } - /* Loadmodule will now return false if any one of the modules failed - * to load (but wont abort when it encounters a bad one) and when 1 or - * more modules were actually loaded. - */ - return (n_match > 0 ? false : true); - } - - char modfile[MAXBUF]; - snprintf(modfile,MAXBUF,"%s/%s",ServerInstance->Config->ModPath.c_str(),filename); - std::string filename_str = filename; - - if (!ServerConfig::FileExists(modfile)) - { - LastModuleError = "Module file could not be found: " + filename_str; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); + LastModuleError = "Module " + mod->ModuleSourceFile + " is not loaded, cannot unload it!"; + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError); return false; } - - if (Modules.find(filename_str) != Modules.end()) + if (mod->GetVersion().Flags & VF_STATIC) { - LastModuleError = "Module " + filename_str + " is already loaded, cannot load a module twice!"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); + LastModuleError = "Module " + mod->ModuleSourceFile + " not unloadable (marked static)"; + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError); return false; } - Module* newmod = NULL; - DLLFactory* newhandle = NULL; + mod->dying = true; + return true; +} - try - { - /* This will throw a CoreException if there's a problem loading - * the module file or getting a pointer to the init_module symbol. - */ - newhandle = new DLLFactory(modfile, "init_module"); - if (newhandle->init_func) - newmod = newhandle->init_func(); +void ModuleManager::DoSafeUnload(Module* mod) +{ + // First, notify all modules that a module is about to be unloaded, so in case + // they pass execution to the soon to be unloaded module, it will happen now, + // i.e. before we unregister the services of the module being unloaded + FOREACH_MOD(OnUnloadModule, (mod)); - if (newmod) - { - newmod->ModuleSourceFile = filename_str; - newmod->ModuleDLLFactory = newhandle; - Version v = newmod->GetVersion(); + std::map::iterator modfind = Modules.find(mod->ModuleSourceFile); - if (v.API != API_VERSION) - { - DetachAll(newmod); - delete newmod; - delete newhandle; - LastModuleError = "Unable to load " + filename_str + ": Incorrect module API version: " + ConvToStr(v.API) + " (our version: " + ConvToStr(API_VERSION) + ")"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; - } - else - { - ServerInstance->Logs->Log("MODULE", DEFAULT,"New module introduced: %s (API version %d, Module version %s)%s", filename, v.API, v.version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]")); - } - - Modules[filename_str] = newmod; - } - else - { - delete newhandle; - LastModuleError = "Unable to load " + filename_str + ": Probably missing init_module() entrypoint, but dlsym() didn't notice a problem"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; - } - } - /** XXX: Is there anything we can do about this mess? -- Brain */ - catch (LoadModuleException& modexcept) + std::vector > items; + ServerInstance->Extensions.BeginUnregister(modfind->second, items); + /* Give the module a chance to tidy out all its metadata */ + for (chan_hash::iterator c = ServerInstance->chanlist->begin(); c != ServerInstance->chanlist->end(); c++) { - DetachAll(newmod); - if (newmod) - delete newmod; - if (newhandle) - delete newhandle; - LastModuleError = "Unable to load " + filename_str + ": Error when loading: " + modexcept.GetReason(); - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; + mod->OnCleanup(TYPE_CHANNEL,c->second); + c->second->doUnhookExtensions(items); + const UserMembList* users = c->second->GetUsers(); + for(UserMembCIter mi = users->begin(); mi != users->end(); mi++) + mi->second->doUnhookExtensions(items); } - catch (FindSymbolException& modexcept) + for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); u++) { - DetachAll(newmod); - if (newmod) - delete newmod; - if (newhandle) - delete newhandle; - LastModuleError = "Unable to load " + filename_str + ": Error finding symbol: " + modexcept.GetReason(); - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; + mod->OnCleanup(TYPE_USER,u->second); + u->second->doUnhookExtensions(items); } - catch (CoreException& modexcept) + for(char m='A'; m <= 'z'; m++) { - DetachAll(newmod); - if (newmod) - delete newmod; - if (newhandle) - delete newhandle; - LastModuleError = "Unable to load " + filename_str + ": " + modexcept.GetReason(); - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; + ModeHandler* mh; + mh = ServerInstance->Modes->FindMode(m, MODETYPE_USER); + if (mh && mh->creator == mod) + this->DelService(*mh); + mh = ServerInstance->Modes->FindMode(m, MODETYPE_CHANNEL); + if (mh && mh->creator == mod) + this->DelService(*mh); } - - this->ModCount++; - FOREACH_MOD(I_OnLoadModule,OnLoadModule(newmod, filename_str)); - - /* We give every module a chance to re-prioritize when we introduce a new one, - * not just the one thats loading, as the new module could affect the preference - * of others - */ - for(int tries = 0; tries < 20; tries++) + for(std::multimap::iterator i = DataProviders.begin(); i != DataProviders.end(); ) { - prioritizationState = tries > 0 ? PRIO_STATE_LAST : PRIO_STATE_FIRST; - for (std::map::iterator n = Modules.begin(); n != Modules.end(); ++n) - n->second->Prioritize(); - - if (prioritizationState == PRIO_STATE_LAST) - break; - if (tries == 19) - ServerInstance->Logs->Log("MODULE", DEFAULT, "Hook priority dependency loop detected while loading " + filename_str); + std::multimap::iterator curr = i++; + if (curr->second->creator == mod) + DataProviders.erase(curr); } - ServerInstance->BuildISupport(); - return true; -} + dynamic_reference_base::reset_all(); -bool ModuleManager::Unload(const char* filename) -{ - std::string filename_str(filename); - std::map::iterator modfind = Modules.find(filename); + DetachAll(mod); - if (modfind != Modules.end()) - { - if (modfind->second->GetVersion().Flags & VF_STATIC) - { - LastModuleError = "Module " + filename_str + " not unloadable (marked static)"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; - } - std::pair intercount = GetInterfaceInstanceCount(modfind->second); - if (intercount.first > 0) - { - LastModuleError = "Failed to unload module " + filename_str + ", being used by " + ConvToStr(intercount.first) + " other(s) via interface '" + intercount.second + "'"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; - } - - std::vector items = Extensible::BeginUnregister(modfind->second); - /* Give the module a chance to tidy out all its metadata */ - for (chan_hash::iterator c = ServerInstance->chanlist->begin(); c != ServerInstance->chanlist->end(); c++) - { - modfind->second->OnCleanup(TYPE_CHANNEL,c->second); - c->second->doUnhookExtensions(items); - const UserMembList* users = c->second->GetUsers(); - for(UserMembCIter mi = users->begin(); mi != users->end(); mi++) - mi->second->doUnhookExtensions(items); - } - for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); u++) - { - modfind->second->OnCleanup(TYPE_USER,u->second); - u->second->doUnhookExtensions(items); - } + Modules.erase(modfind); + ServerInstance->GlobalCulls.AddItem(mod); - /* Tidy up any dangling resolvers */ - ServerInstance->Res->CleanResolvers(modfind->second); - - FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(modfind->second, modfind->first)); - - this->DetachAll(modfind->second); - - ServerInstance->Parser->RemoveCommands(modfind->second); - ServerInstance->Modes->RemoveModes(modfind->second); - - ServerInstance->GlobalCulls.AddItem(modfind->second); - Modules.erase(modfind); - - ServerInstance->Logs->Log("MODULE", DEFAULT,"Module %s unloaded",filename); - this->ModCount--; - ServerInstance->BuildISupport(); - return true; - } - - LastModuleError = "Module " + filename_str + " is not loaded, cannot unload it!"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); - return false; + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Module %s unloaded",mod->ModuleSourceFile.c_str()); + this->ModCount--; + ServerInstance->ISupport.Build(); } -/* We must load the modules AFTER initializing the socket engine, now */ -void ModuleManager::LoadAll() +void ModuleManager::UnloadAll() { - char configToken[MAXBUF]; - ModCount = -1; - - printf("\nLoading core commands"); - fflush(stdout); - - DIR* library = opendir(ServerInstance->Config->ModPath.c_str()); - if (library) + /* We do this more than once, so that any service providers get a + * chance to be unhooked by the modules using them, but then get + * a chance to be removed themsleves. + * + * Note: this deliberately does NOT delete the DLLManager objects + */ + for (int tries = 0; tries < 4; tries++) { - dirent* entry = NULL; - while (0 != (entry = readdir(library))) + std::map::iterator i = Modules.begin(); + while (i != Modules.end()) { - if (InspIRCd::Match(entry->d_name, "cmd_*.so", ascii_case_insensitive_map)) + std::map::iterator me = i++; + if (CanUnload(me->second)) { - printf("."); - fflush(stdout); - - if (!Load(entry->d_name)) - { - ServerInstance->Logs->Log("MODULE", DEFAULT, this->LastError()); - printf_c("\n[\033[1;31m*\033[0m] %s\n\n", this->LastError().c_str()); - ServerInstance->Exit(EXIT_STATUS_MODULE); - } + DoSafeUnload(me->second); } } - closedir(library); - printf("\n"); - } - - for(int count = 0; count < ServerInstance->Config->ConfValueEnum("module"); count++) - { - ServerInstance->Config->ConfValue("module", "name", count, configToken, MAXBUF); - printf_c("[\033[1;32m*\033[0m] Loading module:\t\033[1;32m%s\033[0m\n",configToken); - - if (!this->Load(configToken)) - { - ServerInstance->Logs->Log("MODULE", DEFAULT, this->LastError()); - printf_c("\n[\033[1;31m*\033[0m] %s\n\n", this->LastError().c_str()); - ServerInstance->Exit(EXIT_STATUS_MODULE); - } - } -} - -bool ModuleManager::PublishFeature(const std::string &FeatureName, Module* Mod) -{ - if (Features.find(FeatureName) == Features.end()) - { - Features[FeatureName] = Mod; - return true; + ServerInstance->GlobalCulls.Apply(); } - return false; } -bool ModuleManager::UnpublishFeature(const std::string &FeatureName) -{ - featurelist::iterator iter = Features.find(FeatureName); - - if (iter == Features.end()) - return false; - - Features.erase(iter); - return true; -} - -Module* ModuleManager::FindFeature(const std::string &FeatureName) -{ - featurelist::iterator iter = Features.find(FeatureName); - - if (iter == Features.end()) - return NULL; - - return iter->second; -} - -bool ModuleManager::PublishInterface(const std::string &InterfaceName, Module* Mod) +std::string& ModuleManager::LastError() { - interfacelist::iterator iter = Interfaces.find(InterfaceName); - - if (iter == Interfaces.end()) - { - modulelist ml; - ml.push_back(Mod); - Interfaces[InterfaceName] = std::make_pair(0, ml); - } - else - { - iter->second.second.push_back(Mod); - } - return true; + return LastModuleError; } -bool ModuleManager::UnpublishInterface(const std::string &InterfaceName, Module* Mod) +void ModuleManager::AddService(ServiceProvider& item) { - interfacelist::iterator iter = Interfaces.find(InterfaceName); - - if (iter == Interfaces.end()) - return false; - - for (modulelist::iterator x = iter->second.second.begin(); x != iter->second.second.end(); x++) + switch (item.service) { - if (*x == Mod) + case SERVICE_COMMAND: + if (!ServerInstance->Parser->AddCommand(static_cast(&item))) + throw ModuleException("Command "+std::string(item.name)+" already exists."); + return; + case SERVICE_MODE: { - iter->second.second.erase(x); - if (iter->second.second.empty()) - Interfaces.erase(InterfaceName); - return true; + ModeHandler* mh = static_cast(&item); + if (!ServerInstance->Modes->AddMode(mh)) + throw ModuleException("Mode "+std::string(item.name)+" already exists."); + DataProviders.insert(std::make_pair((mh->GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + item.name, &item)); + dynamic_reference_base::reset_all(); + return; } - } - return false; -} - -modulelist* ModuleManager::FindInterface(const std::string &InterfaceName) -{ - interfacelist::iterator iter = Interfaces.find(InterfaceName); - if (iter == Interfaces.end()) - return NULL; - else - return &(iter->second.second); -} + case SERVICE_METADATA: + if (!ServerInstance->Extensions.Register(static_cast(&item))) + throw ModuleException("Extension " + std::string(item.name) + " already exists."); + return; + case SERVICE_DATA: + case SERVICE_IOHOOK: + { + if ((item.name.substr(0, 5) == "mode/") || (item.name.substr(0, 6) == "umode/")) + throw ModuleException("The \"mode/\" and the \"umode\" service name prefixes are reserved."); -bool ModuleManager::ModuleHasInterface(Module* mod, const std::string& InterfaceName) -{ - interfacelist::iterator iter = Interfaces.find(InterfaceName); - if (iter == Interfaces.end()) - return false; - else - { - modulelist& ml = iter->second.second; - modulelist::iterator mi = std::find(ml.begin(), ml.end(), mod); - return (mi != ml.end()); + DataProviders.insert(std::make_pair(item.name, &item)); + std::string::size_type slash = item.name.find('/'); + if (slash != std::string::npos) + { + DataProviders.insert(std::make_pair(item.name.substr(0, slash), &item)); + DataProviders.insert(std::make_pair(item.name.substr(slash + 1), &item)); + } + dynamic_reference_base::reset_all(); + return; + } + default: + throw ModuleException("Cannot add unknown service type"); } } -void ModuleManager::UseInterface(const std::string &InterfaceName) +void ModuleManager::DelService(ServiceProvider& item) { - interfacelist::iterator iter = Interfaces.find(InterfaceName); - if (iter != Interfaces.end()) - iter->second.first++; - -} - -void ModuleManager::DoneWithInterface(const std::string &InterfaceName) -{ - interfacelist::iterator iter = Interfaces.find(InterfaceName); - if (iter != Interfaces.end()) - iter->second.first--; -} - -std::pair ModuleManager::GetInterfaceInstanceCount(Module* m) -{ - for (interfacelist::iterator iter = Interfaces.begin(); iter != Interfaces.end(); iter++) + switch (item.service) { - for (modulelist::iterator x = iter->second.second.begin(); x != iter->second.second.end(); x++) + case SERVICE_MODE: + if (!ServerInstance->Modes->DelMode(static_cast(&item))) + throw ModuleException("Mode "+std::string(item.name)+" does not exist."); + // Fall through + case SERVICE_DATA: + case SERVICE_IOHOOK: { - if (*x == m) + for(std::multimap::iterator i = DataProviders.begin(); i != DataProviders.end(); ) { - return std::make_pair(iter->second.first, iter->first); + std::multimap::iterator curr = i++; + if (curr->second == &item) + DataProviders.erase(curr); } + dynamic_reference_base::reset_all(); + return; } + default: + throw ModuleException("Cannot delete unknown service type"); } - return std::make_pair(0, ""); -} - -const std::string& ModuleManager::GetModuleName(Module* m) -{ - static std::string nothing; - - for (std::map::iterator n = Modules.begin(); n != Modules.end(); ++n) - { - if (n->second == m) - return n->first; - } - - return nothing; } -/* This is ugly, yes, but hash_map's arent designed to be - * addressed in this manner, and this is a bit of a kludge. - * Luckily its a specialist function and rarely used by - * many modules (in fact, it was specially created to make - * m_safelist possible, initially). - */ - -Channel* InspIRCd::GetChannelIndex(long index) +ServiceProvider* ModuleManager::FindService(ServiceType type, const std::string& name) { - int target = 0; - for (chan_hash::iterator n = this->chanlist->begin(); n != this->chanlist->end(); n++, target++) + switch (type) { - if (index == target) - return n->second; + case SERVICE_DATA: + case SERVICE_IOHOOK: + { + std::multimap::iterator i = DataProviders.find(name); + if (i != DataProviders.end() && i->second->service == type) + return i->second; + return NULL; + } + // TODO implement finding of the other types + default: + throw ModuleException("Cannot find unknown service type"); } - return NULL; } -CmdResult InspIRCd::CallCommandHandler(const std::string &commandname, const std::vector& parameters, User* user) +dynamic_reference_base::dynamic_reference_base(Module* Creator, const std::string& Name) + : name(Name), value(NULL), creator(Creator) { - return this->Parser->CallHandler(commandname, parameters, user); + if (!dynrefs) + dynrefs = new std::vector; + dynrefs->push_back(this); + if (dynref_init_complete) + resolve(); } -bool InspIRCd::IsValidModuleCommand(const std::string &commandname, int pcnt, User* user) +dynamic_reference_base::~dynamic_reference_base() { - return this->Parser->IsValidCommand(commandname, pcnt, user); -} - -void InspIRCd::AddCommand(Command *f) -{ - if (!this->Parser->CreateCommand(f)) + for(unsigned int i = 0; i < dynrefs->size(); i++) { - ModuleException err("Command "+std::string(f->command)+" already exists."); - throw (err); + if (dynrefs->at(i) == this) + { + unsigned int last = dynrefs->size() - 1; + if (i != last) + dynrefs->at(i) = dynrefs->at(last); + dynrefs->erase(dynrefs->begin() + last); + if (dynrefs->empty()) + { + delete dynrefs; + dynrefs = NULL; + } + return; + } } } -void InspIRCd::SendMode(const std::vector& parameters, User *user) +void dynamic_reference_base::SetProvider(const std::string& newname) { - this->Modes->Process(parameters, user); + name = newname; + resolve(); } -void InspIRCd::DumpText(User* user, const std::string &text) +void dynamic_reference_base::resolve() { - if (IS_LOCAL(user)) - { - user->Write(text); - } + std::multimap::iterator i = ServerInstance->Modules->DataProviders.find(name); + if (i != ServerInstance->Modules->DataProviders.end()) + value = static_cast(i->second); else - { - PI->PushToClient(user, text); - } -} - -void InspIRCd::DumpText(User* user, const char *text, ...) -{ - va_list argsPtr; - char line[MAXBUF]; - - va_start(argsPtr, text); - vsnprintf(line, MAXBUF, text, argsPtr); - va_end(argsPtr); - - DumpText(user, std::string(line)); -} - -void InspIRCd::DumpText(User* user, const std::string &LinePrefix, std::stringstream &TextStream) -{ - char line[MAXBUF]; - int start_pos = LinePrefix.length(); - int pos = start_pos; - memcpy(line, LinePrefix.data(), pos); - std::string Word; - while (TextStream >> Word) - { - int len = Word.length(); - if (pos + len + 12 > MAXBUF) - { - line[pos] = '\0'; - DumpText(user, std::string(line)); - pos = start_pos; - } - line[pos] = ' '; - memcpy(line + pos + 1, Word.data(), len); - pos += len + 1; - } - line[pos] = '\0'; - DumpText(user, std::string(line)); -} - -bool InspIRCd::AddResolver(Resolver* r, bool cached) -{ - if (!cached) - return this->Res->AddResolverClass(r); - else - { - r->TriggerCachedResult(); - delete r; - return true; - } + value = NULL; } Module* ModuleManager::Find(const std::string &name) @@ -883,148 +555,45 @@ const std::vector ModuleManager::GetAllModuleNames(int filter) return retval; } -ConfigReader::ConfigReader() +FileReader::FileReader(const std::string& filename) { - this->error = 0; + Load(filename); } - -ConfigReader::~ConfigReader() +void FileReader::Load(const std::string& filename) { -} - - -std::string ConfigReader::ReadValue(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool allow_linefeeds) -{ - /* Don't need to strlcpy() tag and name anymore, ReadConf() takes const char* */ - std::string result; - - if (!ServerInstance->Config->ConfValue(tag, name, default_value, index, result, allow_linefeeds)) + // If the file is stored in the file cache then we used that version instead. + ConfigFileCache::iterator it = ServerInstance->Config->Files.find(filename); + if (it != ServerInstance->Config->Files.end()) { - this->error = CONF_VALUE_NOT_FOUND; + this->lines = it->second; } - return result; -} - -std::string ConfigReader::ReadValue(const std::string &tag, const std::string &name, int index, bool allow_linefeeds) -{ - return ReadValue(tag, name, "", index, allow_linefeeds); -} - -bool ConfigReader::ReadFlag(const std::string &tag, const std::string &name, const std::string &default_value, int index) -{ - return ServerInstance->Config->ConfValueBool(tag, name, default_value, index); -} - -bool ConfigReader::ReadFlag(const std::string &tag, const std::string &name, int index) -{ - return ReadFlag(tag, name, "", index); -} - - -int ConfigReader::ReadInteger(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool need_positive) -{ - int result; - - if(!ServerInstance->Config->ConfValueInteger(tag, name, default_value, index, result)) + else { - this->error = CONF_VALUE_NOT_FOUND; - return 0; - } + lines.clear(); - if ((need_positive) && (result < 0)) - { - this->error = CONF_INT_NEGATIVE; - return 0; - } - - return result; -} - -int ConfigReader::ReadInteger(const std::string &tag, const std::string &name, int index, bool need_positive) -{ - return ReadInteger(tag, name, "", index, need_positive); -} - -long ConfigReader::GetError() -{ - long olderr = this->error; - this->error = 0; - return olderr; -} + std::ifstream stream(filename.c_str()); + if (!stream.is_open()) + throw CoreException(filename + " does not exist or is not readable!"); -int ConfigReader::Enumerate(const std::string &tag) -{ - return ServerInstance->Config->ConfValueEnum(tag); -} - -int ConfigReader::EnumerateValues(const std::string &tag, int index) -{ - return ServerInstance->Config->ConfVarEnum(tag, index); -} - -FileReader::FileReader(const std::string &filename) -{ - LoadFile(filename); -} - -FileReader::FileReader() -{ -} + std::string line; + while (std::getline(stream, line)) + { + lines.push_back(line); + totalSize += line.size() + 2; + } -std::string FileReader::Contents() -{ - std::string x; - for (file_cache::iterator a = this->fc.begin(); a != this->fc.end(); a++) - { - x.append(*a); - x.append("\r\n"); + stream.close(); } - return x; -} - -unsigned long FileReader::ContentSize() -{ - return this->contentsize; } -void FileReader::CalcSize() +std::string FileReader::GetString() { - unsigned long n = 0; - for (file_cache::iterator a = this->fc.begin(); a != this->fc.end(); a++) - n += (a->length() + 2); - this->contentsize = n; -} - -void FileReader::LoadFile(const std::string &filename) -{ - file_cache c; - c.clear(); - if (ServerInstance->Config->ReadFile(c,filename.c_str())) + std::string buffer; + for (file_cache::iterator it = this->lines.begin(); it != this->lines.end(); ++it) { - this->fc = c; - this->CalcSize(); + buffer.append(*it); + buffer.append("\r\n"); } -} - - -FileReader::~FileReader() -{ -} - -bool FileReader::Exists() -{ - return (!(fc.size() == 0)); -} - -std::string FileReader::GetLine(int x) -{ - if ((x<0) || ((unsigned)x>fc.size())) - return ""; - return fc[x]; -} - -int FileReader::FileSize() -{ - return fc.size(); + return buffer; }